6 Best Free Probability Calculator Software For Windows

Here is a list of best free probability calculator software for Windows. Using these software, you can calculate probability density, cumulative probability, and inverse cumulative probability of various distributions. These include calculations of normal distribution, Student’s t distribution, Chi-square distribution, Fisher distribution, exponential distribution, uniform distribution, binomial distribution, discrete distribution, geometric distribution, integer distribution, Poisson distribution, etc. These software also display the probability distribution curve. In some of these, you get specific probability calculation such as post-test probability, Chi-square probability, binomial distribution, etc. You can export the probability distribution graph as image in some of these.

Some of these are Math software, so you can perform a lot of mathematic calculations. For example, geometry, algebra, calculus, descriptive statistics, row and column statistics, normality test, hypotheses about population mean, proportion, and variance, etc.

My Favorite Probability Calculator Software For Windows:

Statcato is one of my favorite software as it lets you calculate different probability distributions with ease. If you want a dedicated software, then go for Probability Calculator.

You may also like some best free Fibonacci Calculator Software, Laplace Transform Calculator, and Truth Table Calculator Software for Windows.

Statcato

Statcato is a free statistical software which lets you calculate probability distributions. In its Calculate menu, you can find a Probability Distribution option. You can perform Continuous and Discrete Probability Distributions. You can calculate probability density, cumulative probability, and inverse cumulative probability of normal distribution, Student’s t distribution, Chi-square distribution, Fisher distribution, exponential distribution, uniform distribution, binomial distribution, discrete distribution, geometric distribution, integer distribution, and Poisson distribution. You can also compute the p-Value and Frequency Table using it.

You can perform many more calculations using this free software. These include descriptive statistics, row and column statistics, normality test, sample size, confidence intervals, hypotheses about population mean, proportion, and variance, correlation and regression, multinomial, Analysis of Variance, Kruskal Wallis test, etc. You can manipulate data using various options like Transpose, Sort, Rank, Standardize, Generate Random Pattern, etc. It also lets you plot bar chart, box plot, dot plot, histogram, pie chart, scatterplot, stem-and-leaf plot, residual plot, etc. You can create a new datasheet or open a datasheet in XLS, CSV, or TXT format and then perform various calculations. You can print or export log and datasheet windows.

All in all, it is one of the best probability calculator software for Windows.

GeoGebra

GeoGebra is another free statistics calculator software for Windows. It lets you calculate and graph probability distributions of different types including normal, student, Chi-squared, F-distribution, exponential, Cauchy,  Weibull, Gamma, Logistic, Binomial, Pascal, Poisson, Hypergeometric, etc. distributions. Just input the related values and it will display the probability distribution graph. You can export this graph as a PNG image.

To access its probability calculator, go to its Menu button > Perspective option. From here, choose Probability option. Apart from probability calculator, you can find a Statistics tab where you can conduct various statistical tests. For example, Z Test of a Mean, T-Test of a Mean, Z Test of a Proportion, Chi-Squared Test, Goodness of Fit Test, Z Estimate of a Mean, etc.

GeoGebra is a nice Math calculation software to solve geometry, algebra, calculus, etc. functions. It can be used for 3D graphing too.

Probability Calculator

Probability Calculator, as the title suggests, is a dedicated probability calculator for Windows. Its main interface categorizes probability distributions into two parts:

1. Common Distributions: These include Continuous Uniform, Exponential, Normal, Triangular, Binomial, Discrete Uniform, Geometric, Hyper Geometric, Poisson, and Beta PERT distributions.
2. Special Distributions: Beta, Chi-Square, Rayleigh, Student’s T, Weibull, Gamma, and Negative Binomial come under this category.

You can also create your own custom distribution with functions/equations, or probability table. You can create Probability Mass Function (PMF)/Probability Density Function (PDF), Cumulative Distribution Function (CDF), Survival Function (SF), and Hazard Rate from the same distribution. It lets you model a probability distribution using a data table of various perspective such as PMF, CDF, SF, etc. It displays the probability distribution curve.

In case you want a dedicated software to calculate probability distributions, you can try this software.

Binomial Distribution Calculator

Binomial Distribution Calculator is a portable probability calculator for Windows. As the name suggests, it is used for calculating binomial distribution. For this, you need to enter number of trials, probability, and successes. It calculates expected value and standard deviation. You can view calculated data in a table or as a graph.

EDPcalc

EDPcalc is another free portable probability calculator for Windows. It basically determines post-test probability on the basis of input pre-test probability and likelihood ratio. As simple as that.

Pre-test and post-test probabilities are basically the probabilities of the presence of a condition prior to and post a diagnostic test. The likelihood ratio is the ratio of how likely a target disorder is expected in a patient to how likely a target disorder is not expected in a patient. You can read more about these probabilities here.

ChisCalc

ChisCalc is a free portable probability calculator which can be used to calculate the probability of a Chi-square. To do so, enter a value and degrees of freedom fields and the probability will be displayed.